In my KMP project I am trying to sort a HashMap by its keys, however I noticed that `toSortedMap` se...

# multiplatform

[Jeff Tycz]

In my KMP project I am trying to sort a HashMap by its keys, however I noticed that toSortedMap seems not to be available in the common module only the JVM. What is the way to sort a hashmap in the common module?

[ephemient]

depends, do you need a MutableMap, a Map, or just a collection of entries?

[Jeff Tycz]

Right now mutable map but not stuck with it or anything

[ephemient]

there isn't a common MutableMap that maintains sorting order right now, you'd have to build your own 😞

[ephemient]

if you just need a read-only Map, the default maps maintain insertion order

[Jeff Tycz]

What would you suggest, I can easily change to something else that could sort as long as I have a way to associate a key with a value. I am trying to build an OAuth header and I need to sort the parameters to create the signature

[ephemient]

map.entries.sortedBy { it.key }.associateBy({ it.key }, { it.value }) would create a new read-only map with ordered keys

[Jeff Tycz]

nice that should do just fine!

[ephemient]

if you just need iteration and don't need the Map aspect, you might be able to get away with map.entries.sortedBy { it.key }

[ephemient]

(also, sounds like OAuth 1... OAuth 2 is simpler 🙂 )

[Jeff Tycz]

ha yeah it is and I wish I could use OAuth2 but the api I am using does not support it for what I need